Tapjoy, which works with developers to distribute and monetize their apps, is actively exploring a sale, according to several sources with knowledge of the company’s discussions. Possible candidates include Zynga and the Japanese mobile gaming giants GREE and DeNA.

The company’s chief executive Mihir Shah denied that the company was for sale. “I can’t comment on rumors or speculation.”

He added, “We’re at a level of scale and the market opportunity is so large and we’re so clearly in the lead that there isn’t really any direct viable competitor. We just continue to be focused on building this ridiculously exciting business.”